Experiment: 7R95

SOLUTION NMR

NMR Experiment
Experiment	Type	Sample Contents	Solvent	Ionic Strength	pH	Pressure	Temperature (K)	Spectrometer
1	2D TROSY-HSQC	0.4 mM [U-13C; U-15N; U-2H] SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE III 700
2	3D HNCO	0.4 mM [U-13C; U-15N; U-2H] SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE III 700
3	3D HNCA	0.4 mM [U-13C; U-15N; U-2H] SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE III 700
4	3D NOESY-TROSY	0.3 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE NEO 900
5	2D T1	0.3 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE NEO 900
6	2D T1rho	0.3 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE NEO 900
7	2D Het NOE	0.3 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 150 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE II 600
8	Hydrogen Exchange	0.1 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 100 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	7	1 bar	303	Bruker AVANCE III 800
9	1H-15N 2D ARTSY	0.15 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 120 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE III 800
10	1H-15N E.COSY-TROSY	0.15 mM 15N, 2H SARS-CoV-2 spike protein HR1 domain, 20 mM sodium phosphate buffer, 30 mM NaCl, 120 mM DMPC/DHPC	97% H2O/3% D2O	50 mM	6	1 bar	308	Bruker AVANCE III 800

NMR Spectrometer Information
Spectrometer	Manufacturer	Model	Field Strength
1	Bruker	AVANCE III	700
2	Bruker	AVANCE III	800
3	Bruker	AVANCE NEO	900
4	Bruker	AVANCE II	600

NMR Refinement
Method	Details	Software
simulated annealing		X-PLOR NIH

NMR Ensemble Information
Conformer Selection Criteria	structures with the lowest energy
Conformers Calculated Total Number	200
Conformers Submitted Total Number	20
Representative Model	1 (lowest energy)

Computation: NMR Software
#	Classification	Version	Software Name	Author
1	collection	TopSpin		Bruker Biospin
2	processing	NMRPipe		Delaglio, Grzesiek, Vuister, Zhu, Pfeifer and Bax
3	chemical shift assignment	CcpNmr Analysis		CCPN
4	refinement	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore
5	structure calculation	X-PLOR NIH		Schwieters, Kuszewski, Tjandra and Clore

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.